P-662H/HW-D Series User’s Guide

Figure 79 DMZ

The following table describes the labels in this screen.

Table 51 DMZ

LABEL

DESCRIPTION

 

 

DMZ TCP/IP

 

 

 

IP Address

Type the IP address of your ZyXEL Device’s DMZ port in dotted decimal notation.

 

Make sure the IP address is on a separate subnet from the LAN port.

IP Subnet Mask

The subnet mask specifies the network number portion of an IP address. Your

 

ZyXEL Device will automatically calculate the subnet mask based on the IP

 

address that you assign. Unless you are implementing subnetting, use the subnet

 

mask computed by the ZyXEL Device 255.255.255.0.

RIP Direction

RIP (Routing Information Protocol, RFC1058 and RFC 1389) allows a router to

 

exchange routing information with other routers. The RIP Direction field controls

 

the sending and receiving of RIP packets. Select the RIP direction from Both/In

 

Only/Out Only/None. When set to Both or Out Only, the ZyXEL Device will

 

broadcast its routing table periodically. When set to Both or In Only, it will

 

incorporate the RIP information that it receives; when set to None, it will not send

 

any RIP packets and will ignore any RIP packets received. Both is the default.

RIP Version

The RIP Version field controls the format and the broadcasting method of the

 

RIP packets that the ZyXEL Device sends (it recognizes both formats when

 

receiving). RIP-1 is universally supported but RIP-2 carries more information.

 

RIP-1 is probably adequate for most networks, unless you have an unusual

 

network topology. Both RIP-2B and RIP-2M sends the routing data in RIP-2

 

format; the difference being that RIP-2B uses subnet broadcasting while RIP-2M

 

uses multicasting. Multicasting can reduce the load on non-router machines since

 

they generally do not listen to the RIP multicast address and so will not receive

 

the RIP packets. However, if one router uses multicasting, then all routers on

 

your network must use multicasting, also. By default, RIP direction is set to Both

 

and the Version set to RIP-1.

Multicast

IGMP (Internet Group Multicast Protocol) is a network-layer protocol used to

 

establish membership in a multicast group. The ZyXEL Device supports both

 

IGMP version 1 (IGMP-v1) and IGMP-v2. Select None to disable it.

Windows Networking (NetBIOS over TCP/IP)

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Chapter 8 DMZ